Advanced sleep monitoring with REM sleep & can gauge blood oxygen saturation levels during the night with the wrist-based Pulse Ox sensor (this is not a medical device & is not intended for use in the diagnosis or monitoring of any medical condition)

Syncs music from select premium streaming services when paired with a compatible smartphone (may require premium subscription), or stores up to 1,000 songs and connects with headphones (sold separately) enabled with Bluetooth® technology for phone-free listening